023
FZUS51 KBOX 180503
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT THU SEP 18 2025
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-181800-
103 AM EDT THU SEP 18 2025
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A HIGH PRES TO OUR N SLOWLY MOVES E OF THE REGION THROUGH MID-WEEK
AS A LOW PRES PASSES WELL TO OUR S. SHOWERS EXPECTED OVER THE SRN
COASTAL WATERS TONIGHT. A COLD FRONT WILL CROSS THE REGION FRI,
FOLLOWED BY A LARGE HIGH PRES BUILDING IN FROM THE N FOR THIS
WEEKEND.
ANZ250-181800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 3 FT AT 8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU
NE WINDS AROUND 5 KT, BECOMING N IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND SW 2 FT AT
3 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING N IN
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS
AND W 2 FT AT 3 SECONDS.
FRI NIGHT AND SAT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND NW 2 FT AT
3 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-181800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH
ISOLATED TSTMS. VSBY 1 NM OR LESS.
THU
NE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SW 1 FOOT AT
2 SECONDS.
FRI
NW WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND E 2 FT AT
7 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-181800-
CAPE COD BAY-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
E WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 3 SECONDS AND S 1 FOOT AT 3 SECONDS. PATCHY
FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 TO
3 NM.
THU
N WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 2 SECONDS AND S 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND SW 1 FOOT AT
3 SECONDS.
FRI
NW WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT, BECOMING N
IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND NW 1 FOOT AT 3 SECONDS.
FRI NIGHT AND SAT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 2 FT AT 5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-181800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 3 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM OR
LESS.
THU
E WINDS AROUND 5 KT, BECOMING NW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS AND SW 2 FT AT 4 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 NM OR LESS.
FRI
NW WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W 2 FT AT
3 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT AND SAT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N
3 FT AT 6 SECONDS.
SUN THROUGH MON NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-181800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH
ISOLATED TSTMS. VSBY 1 NM OR LESS.
THU
E WINDS AROUND 5 KT, BECOMING W IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
SW 2 FT AT 5 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR
LESS.
FRI
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE MORNING
WITH VSBY 1 NM OR LESS.
FRI NIGHT AND SAT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 4 FT AT 5 SECONDS AND SW 2 FT AT 5 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 5 SECONDS.
SUN THROUGH MON NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-181800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT THU SEP 18 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT EARLY THIS
MORNING...
REST OF TONIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 4 FT. WAVE
DETAIL: SE 4 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. A CHANCE OF SHOWERS. VSBY 1 NM OR LESS.
THU
N WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
SW 2 FT AT 5 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR
LESS.
FRI
W WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
FRI NIGHT AND SAT
NE WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: NE 4 FT AT 6 SECONDS AND W 2 FT AT 5 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 6 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS AROUND 10 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-181800-
NANTUCKET SOUND-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 NM
OR LESS.
THU
NE WINDS 5 TO 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND S 1 FOOT AT
7 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND
E 1 FOOT AT 7 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 TO
3 NM.
FRI
NW WINDS 10 TO 15 KT, BECOMING N IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND E 1 FOOT AT
7 SECONDS.
FRI NIGHT AND SAT
NE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 4 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 2 FT AT 5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-181800-
VINEYARD SOUND-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. SHOWERS LIKELY WITH ISOLATED TSTMS. VSBY 1 NM OR LESS.
THU
NE WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS. PATCHY FOG AFTER MIDNIGHT.
FRI
NW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
FRI NIGHT AND SAT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 1 FOOT
AT 5 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE EVENING,
THEN 1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 4 SECONDS, BECOMING
SE 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-181800-
BUZZARDS BAY-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. SHOWERS LIKELY WITH ISOLATED TSTMS. VSBY 1 NM OR LESS.
THU
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS.
FRI
NW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
FRI NIGHT AND SAT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 1 FOOT
AT 4 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 4 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-181800-
RHODE ISLAND SOUND-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 4 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. A CHANCE OF SHOWERS. VSBY 1 NM OR LESS.
THU
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
SW 2 FT AT 4 SECONDS.
FRI
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND W
2 FT AT 6 SECONDS.
SAT AND SAT NIGHT
SE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 5 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-181800-
BLOCK ISLAND SOUND-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: E 4 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY
FOG. A CHANCE OF SHOWERS. VSBY 1 NM OR LESS.
THU
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 NM OR
LESS.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 6 SECONDS.
FRI
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND W
2 FT AT 4 SECONDS.
SAT AND SAT NIGHT
SE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 5 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-181800-
BOSTON HARBOR-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
PATCHY FOG. SHOWERS LIKELY WITH ISOLATED TSTMS. VSBY 1 TO 3 NM.
THU
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN
THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
FRI
NW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SAT AND SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES AROUND 2 FT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-181800-
NARRAGANSETT BAY-
103 AM EDT THU SEP 18 2025
REST OF TONIGHT
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY
FOG. A CHANCE OF SHOWERS WITH ISOLATED TSTMS. VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. WAVES
AROUND 2 FT. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN
THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG
AFTER MIDNIGHT.
FRI
NW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SAT AND SAT NIGHT
SE WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SUN THROUGH MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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